Make mSuggest final and give DictionaryFacilitator the
responsibility to manage dictionary loading state.
This can simplify the logic to decide how to deal with
additional dictionaries when loading settings or language
switching.

Bug: 13273534
Change-Id: I9f3d328272f25addfa186fbeedaaf8417455ba99

Bug: 8187060
Change-Id: Ide087f1e39b24695b610bd2b3c464b7e3cb9cd29

Bug: 8187060
Change-Id: I77775aa50763158d99753c2312fa11fe14267aef

Change-Id: I7290cd1fb675a1b85b9b6ac2d464c932b5bca1dd

Addresses b/9074239

Change-Id: I91a3bfcbd32b03e4891ff5f65be01383a3fb8975

This is a follow-up to I7c01c3dd3ac33d7e96c00836256bae9c14b124ed

Change-Id: I9e3f8968c4bbf9525d5dfe101f71373c42f88361

JsonWriter requires that its clients pass it only a single top-level object.
The existing implementation tries to make code cleaner by having mJsonWriter
never be null, and instead use a global static "NULL_JSON_WRITER" that just
discards data.  But because JsonWriter complains if more than one top-level
object is passed, making this a global object does not work.  This change
instead copes with mJsonWriter being null.

Change-Id: Ia37ccfc8646e91f11a64713dd92d2846eb86ac54

shiftOut() is getting called once too often through these for loops.

Change-Id: I9a68b49e6cc1469bcddd673ab1567e238cf192b8

LogUnits have been annotated with the autocorrected words, but
until now this was assumed to be a single word without spaces.
But spaceless typing can result in spaces in the LogUnit label.  With this
change, the LogUnit inspects the autocorrected text to determine how many
words were inserted, and counts them accurately.

This change corrects a privacy problem, which was that if the word sampling
algorithm chose a LogUnit that actually contained multiple words, then more
than two successive words would be included in the log.

Change-Id: I7c01c3dd3ac33d7e96c00836256bae9c14b124ed

Previously MainLogBuffer#shiftOutWords() assumed it wouldn't be called if
mNumWordsUntilSafeToSample was 0.  This relaxes this assumption (which is in fact
false in the current code).

Change-Id: I8723248095e84a0d9d6f4639b4742cc7dda9716b

bug: 8393568
Change-Id: Ie5edf44a3627aca9416145aff56bf05bbf2a05f3

multi-project commit with Ia98b1406fc2ee11a96893c77ea58d800fece7624

Change-Id: I8bc3d07b83dbe7d8fc56a618de07dade7f510b13

Currently ResearchLog requires a full dictionary to perform privacy-related checks.
This makes testing difficult.  This change allows a fake dictionary to be used instead.

Change-Id: Ifca5bd8647475a6b84e4324117e0faa0a35479ee

Change-Id: I6d84f490922cd1f40e44ca4f95c9d950fba38290

Change-Id: Ib437a6ad7fd6a897e2bbc65afe881ae8a3b1cbb0

Change-Id: Id6e03c6f8a3e96979d589f0605ac056fcad7e1ff

Change-Id: I78e286723b1b8c8bcc7aea0cc81ef2ee66a193ac

Previously, words were pushed out of a LogBuffer one at a time.  The receiving code had to keep
state to know whether a n-gram was safe to log.  This patch looks at the entire n-gram and makes a
single decision based on it alone.

mult-project commit with I3c40d7e02c77943d2668094ddb1d03efb942c74f

Change-Id: Id7d90bbd551b1a2f4e0e35f38852652f68f273f8

Change-Id: Ic56167f952a7f4449da366e1e81610e72c966086

Previously, a logbuffer only held an n-gram.  Data went in and out of it, FIFO, until privacy
conditions were met (i.e. data not collected too frequently), and then an n-gram was saved.
E.g., if n=2, and only 10% of data is collected, then 18 words went through the logbuffer before
it captured the next 2 words.

However, if a user then went back and edited the n-gram, these edits were not captured.

This change changes the logbuffer size to temporarily hold data about words that are not recorded,
so that if the user backs up over them, the edits to an n-gram that we do eventually capture are
stored.  If the example above, instead of a logbuffer holding 2 words, it holds 20.  The system
waits until all the words not needed for the n-gram have been gathered (i.e. the buffer is full),
so the user has adequate time to edit, before shifting out the n-gram.  The buffer is still flushed
when the user closes the IME.  See the comment for MainLogBuffer for an explanation.

multi-project commit with I45317bc95eeb859adc1b35b24d0478f2df1a67f3

Change-Id: I4ffd95d08c6437dcf650d866ef9e24b6af512334

multi-project commit with Ia4ec213e8356897807cb6a278fccdbaa945732f0

Change-Id: Ib3fe886dc889954a31586ab81d00a21d8d55efd2

Cleanup and prepare for replaying

Change-Id: Ie09e912c6e9c0d7375168c575ccf1cfd9375dd31

The IS_EXPERIMENTAL_DEBUG flag gives a single place to turn off all debugging flags that might be
set and to also enforce privacy controls.  Currently only used in the research package.

multi-project commit with I9275a7c8e40bf56106447a02d3056655329074b3

Change-Id: If769fe3a633f33963ca49e8ddf01ab24a30b6fd2

- broaden OUTPUT_WHOLE_BUFFER to log not just the buffer at the end, but everything along the
  way.  This should only be set when the user is aware that logging is on, e.g. in a user test.

Change-Id: I8f9874697524e533586da40d0a3e452f6a04d3e4

multi-space logging should look like single-space logging, missing a few minor log statements
(SuggestionUpdates, SetComposingText)

multi-project commit with I2af842348c2f2b8f7271ac5b63def245e83df24d

Change-Id: Icd3187c0d0377255f82787afffea657c14345803

Log statements are now recorded with a timestamp.  This is important for filtering out statements
not part of words that are sampled when spaces are inserted automatically.

multi-project commit with Change-Id: I68221a2528045d25632aef4bb716f92a4f4a56a4

Change-Id: I46ac9b3b1dcbb08425160d0109028cb64445139c

Change-Id: I03729506984f259dee63f3a66fd91963e3403d16

- Captures complete motion data for all words in an n-gram.
- Also filters n-grams properly; if any word in the n-gram is not
  in the dictionary, it is not included.
- Simplify ResearchLog to not require explicit state
- Added LogBuffer class MainLogBuffer class to allow n-gram-level decisions
  about privacy.
- Moved LogUnit out from ResearchLogger

multi-project change with Ic70ccb6c2e11eb02d887821434b44daa3eb7a3e2

Bug: 6188932
Change-Id: I731d6cff6539e997874f723b68bdb0d9b651b937

This reverts commit 221e756f

Change-Id: Iefc4e4e27ddc925d4a4634627b0467bd4ee2a66e

DO NOT MERGE

- Captures complete motion data for all words in an n-gram.
- Also filters n-grams properly; if any word in the n-gram is not
  in the dictionary, it is not included.
- Simplify ResearchLog to not require explicit state
- Added LogBuffer class MainLogBuffer class to allow n-gram-level decisions
  about privacy.
- Moved LogUnit out from ResearchLogger

multi-project change with Ie2bc79fd7fe6b951b24771e94b8d4ca21989af65

Bug: 6188932
Change-Id: I568c90d4af07e7c759c1e7fc64b716bd8c7b4ae5

Change-Id: Ia710721774a85ee8ac20ba1f1dc117768e281190

- Captures complete motion data for all words in an n-gram.
- Also filters n-grams properly; if any word in the n-gram is not
  in the dictionary, it is not included.
- Simplify ResearchLog to not require explicit state
- Added LogBuffer class MainLogBuffer class to allow n-gram-level decisions
  about privacy.
- Moved LogUnit out from ResearchLogger

multi-project change with Id997fb6572daa3ff55591afa1676953bb204f33a

Because of a strange Gerrit interaction, earlier patchsets were recorded
as the following separate changes (to soon be abandoned):

- I59d86ae28123890ddb7aabc7dc9a73a75eecbca4
- I9cc95266fa4500d019e09ec53ec00e5dea7ffd38
- Ie6f23a2035e160f231406df1388a43725380df1d
- Id87909e96fa7fa91174c86395a964404f3490fe1
- I57c5cbde0425c42538d589fa4d1802b3e5688f7c
- Ic1f9d7727e416da1b6c4f1a45b53750cd4088dcf
- I20a72ccc4ba1bc08ed3ee39bff71d2adb376588c
- I417f6f364144b90085f5fef4bd2de1a40b5dfa79

Bug: 6188932
Change-Id: I771e57e3b8c0eb6721c2022e775cb0b528bdff93